Digestion Flashcards
1
Q
Carb digestion enzymes?
A
- salivary amylase (ptyalin)
- pancreatic amylase
- maltase
- sucrase
- lactase
2
Q
Salivary amylase (ptyalin)?
A
- produced in salivary glands
- functions in mouth
- hydrolyzes starch to maltose
3
Q
Pancreatic amylase?
A
- produced in pancreas
- functions in small intestine
- hydrolyzes starch to maltose
4
Q
maltase?
A
- produced in intestinal glands
- functions in small intestine
- hydrolyzes maltose to 2 glucoses
5
Q
sucrase?
A
- produced in intestinal glands
- functions in small intestine
- hydrolyzes sucrose to glucose and fructose
6
Q
lactase?
A
- produced in intestinal glands
- functions in small intestine
- hydrolyzes lactose to glucose and galactose
7
Q
Protein digestion enzymes?
A
-Pepsin
Function in small intestin:
- Trypsin
- Chymotrypsin
- Carboxypeptidases A and B
- Aminopeptidase
- Dipeptidase
- Enteropeptidase
8
Q
Pepsin?
A
- produced in Gastric glands (chief cells)
- functions in stomach
- hydrolyzes specific peptide bonds
9
Q
Protein digestive enzymes produced in pancreas?
A
- Trypsin
- Chymotrypsin
- Carboxypeptidase A and B
10
Q
Protein digestive enzymes produced in intestinal glands?
A
- Aminopeptidase
- Dipeptidase
- Enteropeptidase
11
Q
Trypsin?
A
hydrolyzes specific peptide bonds, converts chymotrypsinogen to chymotrypsin
12
Q
Chymotrypsin?
A
hydrolyzes specific peptide bonds
13
Q
Carboxypeptidases A and B?
A
hydrolyzes terminal peptide bond at C terminus
14
Q
Aminopeptidase?
A
hydrolyzes terminal peptide bond at N terminus
15
Q
Dipeptidases?
A
hydrolyzes pairs of amino acids
16
Q
Enteropeptidase?
A
converts trypsinogen to trypsin
17
Q
How are lipids digested?
A
- when chyme is present, the duodenum secretes the hormone cholecystokinin (CCK) into the blood
- CCK stimulates the secretion of pancreatic enzymes and bile, and promotes satiety
- bile is made in liver and emulsifies fat in small intestine, not an enzyme
18
Q
What enzyme digests lipids?
A
lipase, made in pancreas and hydrolyzes lipids in small intestine
